NEET Zoology Digestion and Absorption Questions Solved

In a person of advanced age, the hair become thinner gradually. It happens because of decrease in

(a) synthesis of glucose

(b) synthesis of proteins

(c) energy availability

(d) blood supply

Audio Explanation:

(b) In vertebrates, a-keratin (a protein) constitutes almost the entire dry weight of hair. Therefore, as
the person ages, metabolism decreases, synthesis of protein decreases leading to thinning of hair.

Difficulty Level:

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